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Nanometer-scale Structural Relaxation in Zr-based Bulk Metallic Glass

Published online by Cambridge University Press:  01 February 2011

Jinwoo Hwang ,
Hongbo Cao  and
Paul M. Voyles
Jinwoo Hwang
Affiliation:
jhwang3@wisc.edu, University of Wisconsin-Madison, Materials Science and Engineeing, #202, 1509 University ave, Madison, WI, 53706, United States
Hongbo Cao
Affiliation:
hongboc@cae.wisc.edu, University of Wisconsin, Madison, Materials Science and Engineering, Madison, WI, 53706, United States
Paul M. Voyles
Affiliation:
voyles@engr.wisc.edu, University of Wisconsin, Madison, Materials Science and Engineering, Madison, WI, 53706, United States
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Abstract

We investigated the influence of annealing on the nanometer-scale medium-range order in Zr54Cu38Al8 bulk metallic glass using fluctuation electron microscopy. Fluctuation microscopy experiments probing structure at a length scale of 1 nm show that the as-cast Zr bulk metallic glass contains significant medium range order. That structure is unchanged by annealing at 87% of the glass transition temperature for 24 hours, although that anneal does significantly change the differential scanning calorimetry trace.

Keywords

Zramorphoustransmission electron microscopy (TEM)
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1048: Symposium Z – Bulk Metallic Glasses–2007 , 2007 , 1048-Z05-04
Copyright
Copyright © Materials Research Society 2008

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